/Engine/Source/Runtime/Interchange/Engine/Public/InterchangeImportCommon.h
Sets the SourceFileName value at the specified index.
static bool SetSourceFilename ( [UAssetImportData](API\Runtime\Engine\EditorFramework\UAssetImportData) * AssetImportData, const [FString](API\Runtime\Core\Containers\FString) & SourceFilename, int32 SourceIndex, const [FString](API\Runtime\Core\Containers\FString) & SourceLabel )